Fix bug #9455 munmap called for an address location not mapped by samba.

Signed-off-by: Jeremy Allison <jra@samba.org>

diff --git a/source3/lib/util_unistr.c b/source3/lib/util_unistr.c
index f53ef94d69eca4b5b8c016b6c9ed75bfbe08457c..e8483d32c678afd6b3eeb90b4ac61242e87f5208 100644 (file)
--- a/source3/lib/util_unistr.c
+++ b/source3/lib/util_unistr.c
@@ -45,6 +45,7 @@ void gfree_case_tables(void)
                        unmap_file(upcase_table, 0x20000);
                else
                        SAFE_FREE(upcase_table);
+               upcase_table = NULL;
        }
 
        if ( lowcase_table ) {
@@ -52,6 +53,7 @@ void gfree_case_tables(void)
                        unmap_file(lowcase_table, 0x20000);
                else
                        SAFE_FREE(lowcase_table);
+               lowcase_table = NULL;
        }
 
        if ( valid_table ) {
@@ -59,6 +61,7 @@ void gfree_case_tables(void)
                        unmap_file(valid_table, 0x10000);
                else
                        SAFE_FREE(valid_table);
+               valid_table = NULL;
        }
        initialized = false;
 }